To avoid these ads, REGISTER NOW!

Wiring compressor conundrum

ratdoggy

Well-known member
Joined
Mar 27, 2009
Messages
11,977
Location
Akron-Canton area OH
I'm trying to hook up my compressor and I've wired up to the box from the panel. I don't know how to hook up the receptacle. I have run the wiring (red,black,white and bare copper). I heard about 120/240 circuits for driers and ovens after I bought the cable and any directions I can find mention a green wire (ground?)
Some help would be great
I believe I can use the white for the ground on the receptacle and bare copper to the box and red and black to the blades on the receptacle. But I want to be sure
 

Attachments

  • P1030300.jpg
    P1030300.jpg
    143.4 KB · Views: 45
  • P1030301.jpg
    P1030301.jpg
    149.8 KB · Views: 40
Last edited:
To avoid these ads, REGISTER NOW!

Doc

Well-known member
Joined
Feb 19, 2005
Messages
195
Location
St Johns, Forida
If this is for 220V, I just did this yesterday using a dryer outlet as well. You will need to run 10/3 wire. This will give you a black and red for your 2 hot wires, the green will go to the Ground on the receptacle which will be the "U" shaped portion of the receptacle and the bare wire will be grounded to the metal recetacle box. There might be other ways, But this is how I did it.
 

nate379

Banned
Joined
Feb 2, 2009
Messages
7,279
Location
Palmer, AK
This is how I have wired up my stuff, but I don't run 3 wire with ground, just 2 wire.

Bare copper goes to the roundish prong, red and black are your hots, go to the straight blades (doesn't matter which)
 
Last edited:

walrus

Well-known member
Joined
Nov 12, 2008
Messages
11,686
Location
Maine
I'm trying to hook up my compressor and I've wired up to the box from the panel. I don't know how to hook up the receptacle. I have run the wiring (red,black,white and bare copper). I heard about 120/240 circuits for driers and ovens after I bought the cable and any directions I can find mention a green wire (ground?)
Some help would be great
I believe I can use the white for the ground on the receptacle and bare copper to the box and red and black to the blades on the receptacle. But I want to be sure

You don't need the white wire for the plug shown. You use the bare for the ground
 
To avoid these ads, REGISTER NOW!

Zrexxer

Well-known member
Joined
Jan 23, 2007
Messages
5,058
Location
Pflugerville, TX
If this is for 220V, I just did this yesterday using a dryer outlet as well. You will need to run 10/3 wire. This will give you a black and red for your 2 hot wires, the green will go to the Ground on the receptacle which will be the "U" shaped portion of the receptacle and the bare wire will be grounded to the metal recetacle box. There might be other ways, But this is how I did it.
Sorry but in this application that's completely wrong. A 220V-only, single phase circuit is two hots and a ground. Period. This isn't an appliance requiring a 120/240V circuit. There is no neutral. Run 10/2 w/g, connect the green or bare wire to the ground, and the other two conductors to the hot legs, it doesn't matter which is which since it's AC.
 

Doc

Well-known member
Joined
Feb 19, 2005
Messages
195
Location
St Johns, Forida
ZREXXER,
Is this wrong or just overkill w/ the extra ground? I have my electrical inspection later this week.

Ratdoggy, I apologize if I sent you on the wrong path.
 
OP
R

ratdoggy

Well-known member
Joined
Mar 27, 2009
Messages
11,977
Location
Akron-Canton area OH
Thanks for the help. I got it hooked up and it hasn't blown up yet. I just had the extra wire in there. As far as the 120/240 thing I heard that drier heating elements are 240v and the controls are 120v. Just asking.
The other thing is how do you hook up receptacles with that heavy wire. I wrestled with it for a half hour and I still have to hook up the welder.
 
To avoid these ads, REGISTER NOW!
Top Bottom